http://fitmarker.com/ Stories tagged fat en-us Mon, 21 May 2012 15:23:33 -0500 http://fitmarker.com/supplementation/the-acute-effects-of-the-thermogenic-supplement-meltdown-on-energy-expenditure-fat-oxidation-and-hemodynamic-responses-in-young-healthy-males/ Results: Hemodynamic variables (HR and BP) were not significantly affected prior to exercise with either supplement (p > 0.05) and the expected exercise-induced increases observed in HR and BP that decreased into recovery were not different between supplements (p > 0.05). Relative to any supplement-induced differences in exercise performance, VO2max assessed at each of the testing sessions demonstrated no significant differences between Meltdown and placebo (45.31 ± 6.10 vs. 41.69 ± 9.98 ml O2/kg/min, p = 0.185). Meltdown increased REE significantly more than placebo at 45 min (1.44 ± 0.25 vs. 1.28 ± 0.23 kcal/min; p = 0.003) and 60 min (1.49 ± 0.28 vs. 1.30 ± 0.22 kcal/min; p = 0.025) post-ingestion. Furthermore, REE 60 min post-exercise (120 min following supplement administration) was significantly higher in the Meltdown group (1.51 ± 0.26 vs. 1.33 ± 0.27 kcals/min; p = 0.014) (Figure ​(Figure1).1). Over the course of the evaluation period, AUC analysis demonstrated that REE was significantly increased with Meltdown compared to placebo (992.5 ± 133.1 vs. 895.1 ± 296.1 kcals; p = 0.043) (Figure ​(Figure22). ]]> Thu, 10 May 2012 03:46:11 -0500 http://fitmarker.com/supplementation/the-acute-effects-of-the-thermogenic-supplement-meltdown-on-energy-expenditure-fat-oxidation-and-hemodynamic-responses-in-young-healthy-males/ http://fitmarker.com/weight-loss/differences-in-insulin-resistance-do-not-predict-weight-loss-in-response-to-hypocaloric-diets-in-healthy-obese-women/ Sat, 05 May 2012 16:38:28 -0500 http://fitmarker.com/weight-loss/differences-in-insulin-resistance-do-not-predict-weight-loss-in-response-to-hypocaloric-diets-in-healthy-obese-women/ http://fitmarker.com/weight-loss/less-body-fat-improves-physical-and-physiological-performance-in-army-soldiers/ Abstract: The purpose of this study was to compare physical and physiological fitness test performance between Soldiers meeting the Department of Defense (DoD) body fat standard (< or = 18%) and those exceeding the standard (> 18%). Ninety-nine male 101st Airborne (Air Assault) Soldiers were assigned to group 1: < or = 18% body fat (BF) or group 2: > 18% BE. Groups 1 and 2 had similar amounts of fat-free mass (FFM) (66.8 +/- 8.2 vs. 64.6 +/- 8.0, p = 177). Each subject performed a Wingate cycle protocol to test anaerobic power and capacity, an incremental treadmill maximal oxygen uptake test for aerobic capacity, isokinetic tests for knee flexion/extension and shoulder internal/external rotation strength, and the Army Physical Fitness Test. Results showed group 1: < 18% BF performed significantly better on 7 of the 10 fitness tests. In Soldiers with similar amounts of FFM, Soldiers with less body fat had improved aerobic and anaerobic capacity and increased muscular strength. ]]> Tue, 17 Apr 2012 11:38:32 -0500 http://fitmarker.com/weight-loss/less-body-fat-improves-physical-and-physiological-performance-in-army-soldiers/ http://fitmarker.com/muscle-gain/build-muscle-lose-fat-lets-ask-the-experts-how-its-done/ Tue, 10 Apr 2012 00:56:49 -0500 http://fitmarker.com/muscle-gain/build-muscle-lose-fat-lets-ask-the-experts-how-its-done/ http://fitmarker.com/supplementation/dietary-supplements-for-improving-body-composition-where-is-the-evidence/ Abstract Weight-loss supplements typically fall into 1 of 4 categories depending on their hypothesized mechanism of action: products that block the absorption of fat or carbohydrate, stimulants that increase thermogenesis, products that change metabolism and improve body composition, and products that suppress appetite or give a sense of fullness. Each category is reviewed, and an overview of the current science related to their effectiveness is presented. While some weight-loss supplements produce modest effects (<2 kg weight loss), many have either no or few randomized clinical trials examining their effectiveness. A number of factors confound research results associated with the efficacy of weight-loss supplements, such as small sample sizes, short intervention periods, little or no follow-up, and whether the supplement is given in combination with an energy-restricted diet or increased exercise expenditure. There is no strong research evidence indicating that a specific supplement will produce significant weight loss (>2 kg), especially in the long term. Some foods or supplements such as green tea, fiber, and calcium supplements or dairy products may complement a healthy lifestyle to produce small weight losses or prevent weight gain over time. Weight-loss supplements containing metabolic stimulants (e.g., caffeine, ephedra, synephrine) are most likely to produce adverse side effects and should be avoided. ]]> Mon, 09 Apr 2012 09:28:20 -0500 http://fitmarker.com/supplementation/dietary-supplements-for-improving-body-composition-where-is-the-evidence/ http://fitmarker.com/motivation/im-going-on-a-diet-meme/ Thu, 15 Mar 2012 17:40:38 -0500 http://fitmarker.com/motivation/im-going-on-a-diet-meme/ http://fitmarker.com/fat-loss/the-point-workout-shareitfitness-com/ Thu, 08 Mar 2012 12:08:38 -0600 http://fitmarker.com/fat-loss/the-point-workout-shareitfitness-com/ http://fitmarker.com/weight-loss/new-exercise-hormone-found/ Wed, 18 Jan 2012 09:07:16 -0600 http://fitmarker.com/weight-loss/new-exercise-hormone-found/ http://fitmarker.com/research/muscle-fatigue-linked-to-changes-in-the-interaction-between-neuronal-structures/ Tue, 06 Dec 2011 19:18:31 -0600 http://fitmarker.com/research/muscle-fatigue-linked-to-changes-in-the-interaction-between-neuronal-structures/ http://fitmarker.com/weight-loss/fat-loss-eating-plan/ Sun, 06 Nov 2011 12:02:24 -0600 http://fitmarker.com/weight-loss/fat-loss-eating-plan/